positive/negative bending moments occur where shear force changes (ii) its sign. a) Minimum b) Zero c) Maximum d) Remains same
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- (iii) The shear force in a beam subjected to pure positive bending is a) Positive b) Negative c) Zero d) Cannot determineF1 = 3 kN F2 = 11 kN 0- 60° - 30° F3 = 2 kN 2 m F4 = 20 kN a=30° F5 = 2 kN 1] What is the resultant moment of the five forces acting on the rod about point A? a) 10.8 kN.m b) 12.7 kN.m c) 14.6 kN.m d) 5.9 kN.m e) 4.1 kN.m f) 21.3 kN.m 2] What is the resultant moment of the five forces acting on the rod about point C? a) 8.8 kN.m b) 2.7 kN.m c) 31.6 kN.m d) 8.9 kN.m e) 11.1 kN.m f) 24.2 kN.m 3] What is the moment of the force F1 about point E? а) - 25.7 kN.m b) -11.1 kN.m c) - 14.6 kN.m d) - 39.1 kN.m e) - 44.1 kN.m f) -15.3 kN.m 4] What is the moment of the force F2 about point D? a) 17.8 kN.m b) 8.7 kN.m c) 10.6 kN.m d) 12.9 kN.m e) 27.1 kN.m f) 30.1 kN.m 5] What is the moment of the force F5 about point A? а) -1.7 kN.m b) -18.1 kN.m c) - 4.6 kN.m d) - 3.1 kN.m e) - 11.1 kN.m f) -21.3 kN.m 2 mConsider a tube having a rectangular cross-section as shown below. The tube is subjecti two twisting moments of 70 N-m and 35 N -m. Determine the average shear stre developed at point A. The tube is fixed at the other end. 40 mm 70 N-m 4 mm 60 mm 5N-m mm a) 1.75 MPa b) -1.65 MPa c) 4.086 MPa d) 2.095 MPa
- ) The center portion of the rubber balloon has a diameter of d= 100 mm. If the air Plessure within it causes the balloon's diameter to become d= 125mm, determine the average normal strain in the rubber. A) 0.125; B) 0.25 T C) 0.25; D) 1.25 higher FactorFrom the given beam below, locate the point where the shear is zero from point A. w = 3 kips/ft A C В 18'- 24' A) 12 ft. B) 14 ft. c) 16 ft. D 15 ft. E) 18 ft. F) 17 ft. G 10 ft.Three forces which are coplanar are shown in the figure. F = 4 kN F = 5 kN F = 8 kN F 3 17- O A) 17.8 kN 2 60 O B) 12.5 kN 45 F, 1 O ) 15.6 kN > X O D) 20 kN What is the value of the resultant force magnitude? E) 10 kN 8.
- Untitled Section F1 = 3 kN F2 = 11 kN 0= 60° -30° F3 = 2 kN A 2 m 7 m F4 = 20 kN D E laJa = 30° F5 = 2 kN 1] What is the resultant moment of the five forces acting on the rod about point B? a) 17.8 kN.m b) 20.4 kN.m c) 10.6 kN.m d) 12.9 kN.m e) 27.1 kN.m f) 30.1 kN.m 2] What is the resultant moment of the five forces acting on the rod about point E? a) – 21.7 kN.m b) -11.1 kN.m c) - 4.8 kN.m d) - 9.1 kN.m e) - 17.1 kN.m f) -27.3 kN.m 3] What is the moment of the force F1 about point D? a) - 5.8 kN.m b) - 21.2 kN.m c) - 25.6 kN.m d) - 9.9 kN.m e) 1- 8.1 kN.m f) - 26.1 kN.m 4] What is the moment of the force F2 about point E? a) 66.8 kN.m b) 25.4 kN.m c) 43.6 kN.m d) 62.9 kN.m e) 58.6 kN.m f) 23.1 kN.m Activate Windows 5] What is the moment of the force F5 about point B? Go to Settings to activate Wir e) - 11.1 kN.m a) – 19.7 kN.m b) -6.7 kN.m c) - 4.8 kN.m d) - 9.1 kN.m f) -2.3 kN.m 5 mF1 = 3 kN F2 = 11 kN 0- 60° P- 30 F3 = 2 kN 2 m 7 m F4 = 20 kN a= 30° F5 = 2 kN 1] What is the resultant moment of the five forces acting on the rod about point A? a) 10.8 kN.m b) 12.7 kN.m c) 14.6 kN.m d) 5.9 kN.m e) 4.1 kN.m f) 21.3 kN.m 2] What is the resultant moment of the five forces acting on the rod about point C? a) 8.8 kN.m b) 2.7 kN.m c) 31.6 kN.m d) 8.9 kN.m e) 11.1 kN.m f) 24.2 kN.m 3] What is the moment of the force F1 about point E? а)- 25.7 kN.m b) -11.1 kN.m c) - 14.6 kN.m d) - 39.1 kN.m e) - 44.1 kN.m -15.3 kN.m 4] What is the moment of the force F2 about point D? a) 17.8 kN.m b) 8.7 kN.m c) 10.6 kN.m d) 12.9 kN.m e) 27.1 kN.m f) 30.1 kN.m 5] What is the moment of the force F5 about point A? а) - 1.7 kN.m b) -18.1 kN.m c) - 4.6 kN.m d) - 3.1 kN.m e) - 11.1 kN.m f) -21.3 kN.m 2 m17 - In the figure at point O F1 = 119i + 124j F2 = -113i + 117j F3 = -115i - 108j F4 = -137i - 111j Find the sum of the vectors. What is the strength of the total vector? A) 256,56B) 245.62C) 246.98D) -243.96E) -241,26
- F1=3 kN F2=11 kN -60 F3=2 kN A B. 2 m 7 m F4 - 20 kN E a30 FS-2 kN 1] What is the resultant moment of the five forces acting on the rod about point A? a) 10.8 kN.m e) 14.6 kN.m e) 4.1 kN.m 9 21.3 kN.m b) 12.7 kN.m d) 5.9 kN.m 21 What is the resultant moment of the five forces acting on the rod about point C? a) 8.8 kN.m b) 2.7 kN.m e) 31.6 kN.m d) 8.9 kN.m ) 11.1 kN.m 0 24.2 kN.m 31 What is the moment of the force F1 about point E? a) - 25.7 kN.m ) - 14.6 kN.m d) - 39.1 kN.m e) - 44.1 kN.m b) -11.1 kN.m 0-15.3 kN.m 4] What is the moment of the force F2 about point D? a) 17.8 kN.m b) 8.7 kN.m e) 10.6 kN.m d) 12.9 kN.m e) 27.1 kN.m ) 30.1 kN.m 5] What is the moment of the force F5 about point A? ) - 4.6 kN.m a) - 1.7 kN.m b) -18.1 kN.m d) - 3.1 kN.m e) - 11.1 kN.m 0-21.3 KN.mF1 = 3 kN F2 = 11 kN 0- 60° B- 30 F3 = 2 kN 2 m in F4 = 20 kN a=30° F5 = 2 kN 1] What is the resultant moment of the five forces acting on the rod about point A? a) 10.8 kN.m b) 12.7 kN.m c) 14.6 kN.m d) 5.9 kN.m e) 4.1 kN.m f) 21.3 kN.m 2] What is the resultant moment of the five forces acting on the rod about point C? a) S.8 kN.m b) 2.7 kN.m c) 31.6 kN.m d) 8.9 kN.m e) 11.1 kN.m f) 24.2 kN.m 3] What is the moment of the force F1 about point E? а) - 25.7 kN.m b) -11.1 kN.m c) - 14.6 kN.m d) - 39.1 kN.m e) - 44.1 kN.m f) -15.3 kN.m 4] What is the moment of the force F2 about point D? a) 17.8 kN.m b) 8.7 kN.m c) 10.6 kN.m d) 12.9 kN.m e) 27.1 kN.m f) 30.1 kN.m 5] What is the moment of the force F5 about point A? а) - 1.7 kN.m b) -18.1 kN.m c) - 4.6 kN.m d) - 3.1 kN.m e) - 11.1 kN.m f) -21.3 kN.m 2 mF1 = 5 kN F2 = 13 kN 0-45° B - 60° F3 = 4 kN A 2 m 7 m F4 = 22 kN E a = 30° F5 = 4 kN 1] What is the resultant moment of the five forces acting on the rod about point A? a) 11.1 kN.m b) 9.3 kN.m c) 16.2 kN.m d) 18.5 kN.m e) 6.6 kN.m f) 2.9 kN.m 2] What is the resultant moment of the five forces acting on the rod about point C? a) 65.1 kN.m b) 74.3 kN.m c) 19.2 kN.m d) 26.5 kN.m e) 42.9 kN.m f) 55.1 kN.m 3] What is the moment of the force F1 about point E? а) - 19.3 kN.m b) -17.1 kN.m c) - 6.3 kN.m d) - 22.1 kN.m e) - 39.7 kN.m f) - 45.9 kN.m 4] What is the moment of the force F2 about point D? a) 17.1 kN.m b) 48.3 kN.m c) 6.2 kN.m d) 14.5 kN.m e) 42.1 kN.m f) 23.1 kN.m 5] What is the moment of the force F5 about point A? а)- 19.9 kN.m b) -18.1 kN.m c) – 8.3 kN.m d) - 15.1 kN.m e) - 2.7 kN.m f) - 6.8 kN.m